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<p><code>#include &lt;<a class="el" href="IndexBinaryFromFloat_8h_source.html">IndexBinaryFromFloat.h</a>&gt;</code></p>
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Inheritance diagram for faiss::IndexBinaryFromFloat:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:acec0f2bd11dc4b8f84a4c65c58c99dbc"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="acec0f2bd11dc4b8f84a4c65c58c99dbc"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>IndexBinaryFromFloat</b> (<a class="el" href="structfaiss_1_1Index.html">Index</a> *index)</td></tr>
<tr class="separator:acec0f2bd11dc4b8f84a4c65c58c99dbc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac4f01196a335a9b2433e5c16396c1fd7"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinaryFromFloat.html#ac4f01196a335a9b2433e5c16396c1fd7">add</a> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> n, const uint8_t *x) override</td></tr>
<tr class="separator:ac4f01196a335a9b2433e5c16396c1fd7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a487be675843e3146ee15bef3ee004a85"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a487be675843e3146ee15bef3ee004a85"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinaryFromFloat.html#a487be675843e3146ee15bef3ee004a85">reset</a> () override</td></tr>
<tr class="memdesc:a487be675843e3146ee15bef3ee004a85"><td class="mdescLeft">&#160;</td><td class="mdescRight">Removes all elements from the database. <br/></td></tr>
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<tr class="memitem:af92913a782c65843fbf7a65e017d6f5f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinaryFromFloat.html#af92913a782c65843fbf7a65e017d6f5f">search</a> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> n, const uint8_t *x, <a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> k, int32_t *distances, <a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> *labels) const override</td></tr>
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<tr class="memitem:a7de4bb8e82f0dae621c87b44cfb64404"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinaryFromFloat.html#a7de4bb8e82f0dae621c87b44cfb64404">train</a> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> n, const uint8_t *x) override</td></tr>
<tr class="separator:a7de4bb8e82f0dae621c87b44cfb64404"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_structfaiss_1_1IndexBinary"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_structfaiss_1_1IndexBinary')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="structfaiss_1_1IndexBinary.html">faiss::IndexBinary</a></td></tr>
<tr class="memitem:a2a76f22851e42963b6a42c6d39e93b4b inherit pub_methods_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2a76f22851e42963b6a42c6d39e93b4b"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>IndexBinary</b> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> <a class="el" href="structfaiss_1_1IndexBinary.html#a0e485a7189eec2675032486d3b12cf88">d</a>=0, <a class="el" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a> metric=METRIC_L2)</td></tr>
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<tr class="memitem:a68a24abdf241eb98372b7d6fbd8d3891 inherit pub_methods_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a68a24abdf241eb98372b7d6fbd8d3891">add_with_ids</a> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> n, const uint8_t *x, const long *xids)</td></tr>
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<tr class="memitem:a27c32414471c57138b248583fc0c5f8c inherit pub_methods_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a27c32414471c57138b248583fc0c5f8c">assign</a> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> n, const uint8_t *x, <a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> *labels, <a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> k=1)</td></tr>
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<tr class="memitem:ae2b85e2cad27acb06cb9d6d8e600ae02 inherit pub_methods_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top">virtual long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#ae2b85e2cad27acb06cb9d6d8e600ae02">remove_ids</a> (const <a class="el" href="structfaiss_1_1IDSelector.html">IDSelector</a> &amp;sel)</td></tr>
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<tr class="memitem:a60180e1c6b363c287b6e55191455a82f inherit pub_methods_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a60180e1c6b363c287b6e55191455a82f">reconstruct</a> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> key, uint8_t *recons) const </td></tr>
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<tr class="memitem:ae99e8745fc02ffac2cfdb431951eeabf inherit pub_methods_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#ae99e8745fc02ffac2cfdb431951eeabf">search_and_reconstruct</a> (<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> n, const uint8_t *x, <a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> k, int32_t *distances, <a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> *labels, uint8_t *recons) const </td></tr>
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<tr class="memitem:a63d722545b95badd251f3e8770b9bb9b inherit pub_methods_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a63d722545b95badd251f3e8770b9bb9b">display</a> () const </td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a1346bf356aabe668a22944ded824808f"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1346bf356aabe668a22944ded824808f"></a>
<a class="el" href="structfaiss_1_1Index.html">Index</a> *&#160;</td><td class="memItemRight" valign="bottom"><b>index</b> = nullptr</td></tr>
<tr class="separator:a1346bf356aabe668a22944ded824808f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7311fc4d11169f7bc668c16b027336ba"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7311fc4d11169f7bc668c16b027336ba"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinaryFromFloat.html#a7311fc4d11169f7bc668c16b027336ba">own_fields</a> = false</td></tr>
<tr class="memdesc:a7311fc4d11169f7bc668c16b027336ba"><td class="mdescLeft">&#160;</td><td class="mdescRight">Whether object owns the index pointer. <br/></td></tr>
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<tr class="inherit_header pub_attribs_structfaiss_1_1IndexBinary"><td colspan="2" onclick="javascript:toggleInherit('pub_attribs_structfaiss_1_1IndexBinary')"><img src="closed.png" alt="-"/>&#160;Public Attributes inherited from <a class="el" href="structfaiss_1_1IndexBinary.html">faiss::IndexBinary</a></td></tr>
<tr class="memitem:a0e485a7189eec2675032486d3b12cf88 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0e485a7189eec2675032486d3b12cf88"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a0e485a7189eec2675032486d3b12cf88">d</a></td></tr>
<tr class="memdesc:a0e485a7189eec2675032486d3b12cf88 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="mdescLeft">&#160;</td><td class="mdescRight">vector dimension <br/></td></tr>
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int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a277c2645b8def11c5d982384098c5380">code_size</a></td></tr>
<tr class="memdesc:a277c2645b8def11c5d982384098c5380 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="mdescLeft">&#160;</td><td class="mdescRight">number of bytes per vector ( = d / 8 ) <br/></td></tr>
<tr class="separator:a277c2645b8def11c5d982384098c5380 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a41b6759d127475d5fcd2b3982a8f355e inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a41b6759d127475d5fcd2b3982a8f355e"></a>
<a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a41b6759d127475d5fcd2b3982a8f355e">ntotal</a></td></tr>
<tr class="memdesc:a41b6759d127475d5fcd2b3982a8f355e inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="mdescLeft">&#160;</td><td class="mdescRight">total nb of indexed vectors <br/></td></tr>
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<tr class="memitem:a1656c00d77d55999becd71e3d8ea6dd7 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1656c00d77d55999becd71e3d8ea6dd7"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a1656c00d77d55999becd71e3d8ea6dd7">verbose</a></td></tr>
<tr class="memdesc:a1656c00d77d55999becd71e3d8ea6dd7 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="mdescLeft">&#160;</td><td class="mdescRight">verbosity level <br/></td></tr>
<tr class="separator:a1656c00d77d55999becd71e3d8ea6dd7 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a132119ae93e240b54621c5c669853c7f inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a132119ae93e240b54621c5c669853c7f"></a>
bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a132119ae93e240b54621c5c669853c7f">is_trained</a></td></tr>
<tr class="memdesc:a132119ae93e240b54621c5c669853c7f inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="mdescLeft">&#160;</td><td class="mdescRight">set if the <a class="el" href="structfaiss_1_1Index.html">Index</a> does not require training, or if training is done already <br/></td></tr>
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<a class="el" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a344529c829717012b530ef9c13b145b7">metric_type</a></td></tr>
<tr class="memdesc:a344529c829717012b530ef9c13b145b7 inherit pub_attribs_structfaiss_1_1IndexBinary"><td class="mdescLeft">&#160;</td><td class="mdescRight">type of metric this index uses for search <br/></td></tr>
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Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pub_types_structfaiss_1_1IndexBinary"><td colspan="2" onclick="javascript:toggleInherit('pub_types_structfaiss_1_1IndexBinary')"><img src="closed.png" alt="-"/>&#160;Public Types inherited from <a class="el" href="structfaiss_1_1IndexBinary.html">faiss::IndexBinary</a></td></tr>
<tr class="memitem:a01749bbdbd3b7ec6bb9390257ab16c5c inherit pub_types_structfaiss_1_1IndexBinary"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a01749bbdbd3b7ec6bb9390257ab16c5c"></a>
using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> = <a class="el" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">Index::idx_t</a></td></tr>
<tr class="memdesc:a01749bbdbd3b7ec6bb9390257ab16c5c inherit pub_types_structfaiss_1_1IndexBinary"><td class="mdescLeft">&#160;</td><td class="mdescRight">all indices are this type <br/></td></tr>
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using&#160;</td><td class="memItemRight" valign="bottom"><b>component_t</b> = uint8_t</td></tr>
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using&#160;</td><td class="memItemRight" valign="bottom"><b>distance_t</b> = int32_t</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a class="el" href="structfaiss_1_1IndexBinary.html">IndexBinary</a> backed by a float <a class="el" href="structfaiss_1_1Index.html">Index</a>.</p>
<p>Supports adding vertices and searching them.</p>
<p>All queries are symmetric because there is no distinction between codes and vectors. </p>

<p>Definition at line <a class="el" href="IndexBinaryFromFloat_8h_source.html#l00028">28</a> of file <a class="el" href="IndexBinaryFromFloat_8h_source.html">IndexBinaryFromFloat.h</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
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          <td class="memname">void faiss::IndexBinaryFromFloat::add </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a>&#160;</td>
          <td class="paramname"><em>n</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">const uint8_t *&#160;</td>
          <td class="paramname"><em>x</em>&#160;</td>
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          <td>)</td>
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<p>Add n vectors of dimension d to the index.</p>
<p>Vectors are implicitly assigned labels ntotal .. ntotal + n - 1 </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>input matrix, size n * d / 8 </td></tr>
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  </dd>
</dl>

<p>Implements <a class="el" href="structfaiss_1_1IndexBinary.html#af04b1093cdebfea189e0e04da68794d7">faiss::IndexBinary</a>.</p>

<p>Definition at line <a class="el" href="IndexBinaryFromFloat_8cpp_source.html#l00034">34</a> of file <a class="el" href="IndexBinaryFromFloat_8cpp_source.html">IndexBinaryFromFloat.cpp</a>.</p>

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          <td class="memname">void faiss::IndexBinaryFromFloat::search </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a>&#160;</td>
          <td class="paramname"><em>n</em>, </td>
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          <td class="paramtype">const uint8_t *&#160;</td>
          <td class="paramname"><em>x</em>, </td>
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          <td class="paramtype"><a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a>&#160;</td>
          <td class="paramname"><em>k</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int32_t *&#160;</td>
          <td class="paramname"><em>distances</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a> *&#160;</td>
          <td class="paramname"><em>labels</em>&#160;</td>
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          <td>)</td>
          <td></td><td> const</td>
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<p>Query n vectors of dimension d to the index.</p>
<p>return at most k vectors. If there are not enough results for a query, the result array is padded with -1s.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">x</td><td>input vectors to search, size n * d / 8 </td></tr>
    <tr><td class="paramname">labels</td><td>output labels of the NNs, size n*k </td></tr>
    <tr><td class="paramname">distances</td><td>output pairwise distances, size n*k </td></tr>
  </table>
  </dd>
</dl>

<p>Implements <a class="el" href="structfaiss_1_1IndexBinary.html#a48cdd06037d1fb8ce827e7522ba05fb8">faiss::IndexBinary</a>.</p>

<p>Definition at line <a class="el" href="IndexBinaryFromFloat_8cpp_source.html#l00052">52</a> of file <a class="el" href="IndexBinaryFromFloat_8cpp_source.html">IndexBinaryFromFloat.cpp</a>.</p>

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          <td class="memname">void faiss::IndexBinaryFromFloat::train </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structfaiss_1_1IndexBinary.html#a01749bbdbd3b7ec6bb9390257ab16c5c">idx_t</a>&#160;</td>
          <td class="paramname"><em>n</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint8_t *&#160;</td>
          <td class="paramname"><em>x</em>&#160;</td>
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          <td></td>
          <td>)</td>
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<p>Perform training on a representative set of vectors.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">n</td><td>nb of training vectors </td></tr>
    <tr><td class="paramname">x</td><td>training vecors, size n * d / 8 </td></tr>
  </table>
  </dd>
</dl>

<p>Reimplemented from <a class="el" href="structfaiss_1_1IndexBinary.html#a34b7f0f358259d858135555967c6bc79">faiss::IndexBinary</a>.</p>

<p>Definition at line <a class="el" href="IndexBinaryFromFloat_8cpp_source.html#l00069">69</a> of file <a class="el" href="IndexBinaryFromFloat_8cpp_source.html">IndexBinaryFromFloat.cpp</a>.</p>

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<hr/>The documentation for this struct was generated from the following files:<ul>
<li>/data/users/hoss/faiss/<a class="el" href="IndexBinaryFromFloat_8h_source.html">IndexBinaryFromFloat.h</a></li>
<li>/data/users/hoss/faiss/<a class="el" href="IndexBinaryFromFloat_8cpp_source.html">IndexBinaryFromFloat.cpp</a></li>
</ul>
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